| 摘要 |
A foldable paddle blade and shaft comprises a planar elongate polymer plastic substrate with two angularly directioned weakened hinge lines ( 71 ) which extend inwardly and angularly from a location at or near one elongate end of the substrate's lateral edges to form a blade with sidewalls ( 46 ) and a free terminal end ( 30 ). Paralleling weakened hinge lines ( 72 ) parallel and traverse the at least three faceted tubular shaft ( 50 ),( 51 ). In an alternative embodiment, additional paralleling weakened hinge lines ( 72 ),( 73 ) and tabular projections ( 42 ) may form a four faceted or square shape tubular shaft ( 52 ). The paddle blade's three faceted or more eccentric tubular shaft's shape may be in a triangular, a square, or an open sided c-channel shape. A difference in axis between the paddle blade's planar axis and the shaft's elongate axis further strengthens the overall structure in at least one direction. The improvement is a flat substrate which can be easily and more conveniently stored within small areas of most any water craft before being foldingly assembled.
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